标题： 大格点上重夸克QCD的有限温度临界点 显示英文标题

标题： Finite-temperature critical point of heavy-quark QCD on large lattices

摘要： 我们通过在大格点上对Binder拐率的标度研究，来研究QCD在重夸克区域的有限温度临界点。 在我们之前的研究基础上，我们在$N_t=4$处进行扩展研究，对$N_t=6$和8格点进行模拟，其空间体积分别达到纵横比$LT=N_s/N_t=18$和15（$N_s=108$和120），以高精度确定热力学极限下的临界点。 为了实现大空间体积的模拟，我们采用跳跃参数展开，并结合一种有效包含展开式高阶项的方法。 通过检查高阶项的影响，验证了该方法的可靠性。 利用在$N_t=4$、6和8处的临界点结果，我们也尝试对物理单位中的临界点进行初步的连续极限外推。 显示英文摘要

摘要： We study the finite-temperature critical point of QCD in the heavy-quark region by a scaling study of the Binder cumulant on large lattices. Extending our previous study at $N_t=4$, we perform simulations on $N_t=6$ and 8 lattices with spatial volumes up to the aspect ratio $LT=N_s/N_t=18$ and 15 ($N_s=108$ and 120), respectively, to determine the critical point in the thermodynamic limit with a high precision. To enable simulations with large spatial volumes, we adopt the hopping parameter expansion combined with a method to effectively incorporate high order terms of the expansion. The reliability of the method is confirmed by examining the effect of high order terms. Using the results of the critical point at $N_t=4$, 6, and 8, we also attempt a preliminary continuum extrapolation of the critical point in physical units.